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发明名称
Pneumatic surfboard
摘要
申请公布号
US2513857(A)
申请公布日期
1950.07.04
申请号
US19460645543
申请日期
1946.02.05
申请人
FRIEDRICH CONRAD W
发明人
FRIEDRICH CONRAD W.
分类号
B63B35/79
主分类号
B63B35/79
代理机构
代理人
主权项
地址
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